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Cage culture method of speckled trout

A technology for cage culture and spotted trout, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of developing a cage culture method for spotted trout, lack of experience and technical solutions for feeding and daily management, etc. The effect of lowering temperature, saving investment, and strong disease resistance

Active Publication Date: 2014-09-24
MARICULTURE INST OF SHANDONG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there has not been a technical solution for the cage culture method of spotted trout developed according to my country's sea conditions, especially there is no experience and technical solutions for reference in terms of feeding and daily management.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0032] The spotted trout cage culture method of the present invention includes the following steps:

[0033] 1. Production and use of aquaculture cages

[0034] Deep-water cages made of HDPE materials can be used. The perimeter of the cage is 30-100m, and the depth of the cage is 5-20m. The cage has strong resistance to currents and wind and waves, and has high output, but the price is higher and suitable Large-scale offshore farming. It is also possible to use a simple cage with a size of 2~4m×2~4m×3~5m in length × width × depth, and the mesh size of the cage is 0.3 to 0.5 cm.

[0035] 2. Environmental conditions in the sea area

[0036] The physical and chemical factors of water quality in the cage culture area should meet the following requirements:

[0037] 2.1 Water quality: There is no pollution source on the sea surface near the aquaculture area, and the water quality is clear, which meets the national fishery secondary water quality standard.

[0038] 2.2 Wind and waves: Based ...

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PUM

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Abstract

The invention provides a cage culture method of the speckled trout. The method includes production and application of culture cages, satisfying the requirements of a culture zone environment, setting culture density, feed preparation, feeding, and daily management. The speckled trough is fed by means of periodic starvation; for example, feeding is stopped for one day after the speckled trough is fed continuously for 7 days; accordingly, feed conversion rate and speckled trough yield are increased. Astaxanthin is added to the feed, so that meat color of the speckled trout is improved evidently.

Description

Technical field [0001] The invention relates to a method for breeding spotted trout in a cage. Background technique [0002] Speckled trout is a kind of salmon trout. It is a cold-water anadromous fish, mainly distributed in North American countries. Because of its high yield, it is also farmed in large quantities in Norway, Chile and other countries. Spotted trout grows at a suitable water temperature of 0-21 ℃, and the optimum growth water temperature is 10-18 ℃. It can survive in the salinity range of 0-33. It has strong stress resistance and fast growth speed. It can be used in fresh water or sea water at 10-18 ℃ , It can grow to 2-3kg in 1 year and 5kg in 2 years. [0003] Speckled trout has tender meat, unique taste, high nutritional value, few spines between ridges, and high meat yield. It is the first choice for making sashimi and smoked salmon; speckled trout has high economic benefits, and its body weight can reach 5 after 2 years of cultivation. kg, based on the curren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 高凤祥张少春房慧王雪郭文潘雷胡发文菅玉霞
Owner MARICULTURE INST OF SHANDONG PROVINCE
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